<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/reg.css">
</head>

<body>
    <h3>登陆</h3>
    <form action="" name="user_data">
        用户名:<input type="text"><br>
        密&emsp;码:<input type="text">
    </form>
</body>

</html>